Under the lights, temporary art exhibitions, and hordes of tourists that fill Times Square, there is a sculpture you might not notice. Unlike the other sculptures on ArtWalk, this one cannot be seen – only heard. Max Neuhaus’ sound sculpture, “Times Square,” is an unmarked site-specific installation of sound art. Neuhaus first installed it in the subway tunnels in 1977. The recording uses the resonance of the tunnel to amplify the sound. Neuhaus unplugged the sculpture in 1992, but it was reinstalled in 2002 with funding from the Dia Foundation, MTA Arts for Transit, and the Times Square Street Business Improvement District.